SPD200K/300K
Page: 10
Figure 4: Three-Phase, Three- or Four-Wire, Grounded Wye Installation with Integral Switch
If the neutral conductor is not present on three-wire
grounded power systems. For these systems (Wye, no
neutral), bond the neutral and ground lugs together
inside the SPD using 10 AWG wire.
A
2
1
3
4
6
5
7
8
B
C
N
A
B
C
N
A B
N
C
G
THREE POLE
C
N
G
A
TWO POLE
2
1
3
4
6
5
7
8
G
C B
N
A
THREE POLE W/ DS
N
G
B
SINGLE POLE
C
N
G
B
A
THREE POLE
SPD
PHASE C
PHASE A
PHASE B
NEUTRAL
GROUND
N
A
B
C
Wiring Diagrams With Disconnect Switch
NOTICE
HAZARD OF LOSS OF PROPERLY FUNCTIONING LED/ALARM/STATUS
•
Bond the ground and neutral lugs with a 10 AWG wire when connected to no-neutral power sources only.
Failure to follow these instructions can result in equipment damage.
